Introductory Business Statistics 1st edition

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Alexander Holmes, Barbara Illowsky, and Susan Dean
Publisher: OpenStax

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  • Holmes - Introductory Business Statistics 1e

Access is contingent on use of this textbook in the instructor's classroom.

  • Chapter 1: Sampling and Data
    • 1.1: Definitions of Statistics, Probability, and Key Terms (13)
    • 1.2: Data, Sampling, and Variation in Data and Sampling (43)
    • 1.3: Levels of Measurement (9)
    • 1.4: Experimental Design and Ethics (4)

  • Chapter 2: Descriptive Statistics
    • 2.1: Display Data (18)
    • 2.2: Measures of the Location of the Data (11)
    • 2.3: Measures of the Center of the Data (8)
    • 2.4: Sigma Notation and Calculating the Arithmetic Mean (9)
    • 2.5: Geometric Mean (6)
    • 2.6: Skewness and the Mean, Median, and Mode (13)
    • 2.7: Measures of the Spread of the Data (41)

  • Chapter 3: Probability Topics
    • 3.1: Terminology (21)
    • 3.2: Independent and Mutually Exclusive Events (16)
    • 3.3: Two Basic Rules of Probability (26)
    • 3.4: Contingency Tables and Probability Trees
    • 3.5: Venn Diagrams (21)
    • 3: Bringing it Together (16)

  • Chapter 4: Discrete Random Variables
    • 4.0: Introduction (9)
    • 4.1: Hypergeometric Distribution (6)
    • 4.2: Binomial Distribution (29)
    • 4.3: Geometric Distribution (11)
    • 4.4: Poisson Distribution (22)

  • Chapter 5: Continuous Random Variables
    • 5.1: Properties of Continuous Probability Density Functions (11)
    • 5.2: The Uniform Distribution (30)
    • 5.3: The Exponential Distribution (34)

  • Chapter 6: The Normal Distribution
    • 6.1: The Standard Normal Distribution (35)
    • 6.2: Using the Normal Distribution (4)
    • 6.3: Estimating the Binomial with the Normal Distribution (34)

  • Chapter 7: The Central Limit Theorem
    • 7.1: The Central Limit Theorem for Sample Means (12)
    • 7.2: Using the Central Limit Theorem (64)
    • 7.3: The Central Limit Theorem for Proportions (9)
    • 7.4: Finite Population Correction Factor (6)

  • Chapter 8: Confidence Intervals
    • 8.1: A Confidence Interval for a Population Standard Deviation, Known or Large Sample Size
    • 8.2: A Confidence Interval for a Population Standard Deviation Unknown, Small Sample Case (32)
    • 8.3: A Confidence Interval for A Population Proportion (40)
    • 8.4: Calculating the Sample Size n: Continuous and Binary Random Variables (34)

  • Chapter 9: Hypothesis Testing with One Sample
    • 9.1: Null and Alternate Hypotheses (9)
    • 9.2: Outcomes and the Type I and Type II Errors (12)
    • 9.3: Distribution Needed for Hypothesis Testing (13)
    • 9.4: Full Hypothesis Test Examples (40)

  • Chapter 10: Hypothesis Testing with Two Samples
    • 10.1: Comparing Two Independent Population Means (28)
    • 10.2: Cohen's Standards for Small, Medium, and Large Effect Sizes
    • 10.3: Test for Differences in Means: Assuming Equal Population Variances
    • 10.4: Comparing Two Independent Population Proportions (25)
    • 10.5: Two Population Means with Known Standard Deviations (14)
    • 10.6: Matched or Paired Samples (18)
    • 10: Bringing it Together (21)

  • Chapter 11: The Chi-Square Distribution
    • 11.1: Facts About the Chi-Square Distribution (6)
    • 11.2: Test of a Single Variance (25)
    • 11.3: Goodness-of-Fit Test (21)
    • 11.4: Test of Independence (24)
    • 11.5: Test for Homogeneity (11)
    • 11.6: Comparison of the Chi-Square Tests (6)
    • 11: Bringing it Together

  • Chapter 12: F Distribution and One-Way ANOVA
    • 12.1: Test of Two Variances (26)
    • 12.2: One-Way ANOVA (6)
    • 12.3: The F Distribution and the F-Ratio (13)
    • 12.4: Facts About the F Distribution (28)

  • Chapter 13: Linear Regression and Correlation
    • 13.1: The Correlation Coefficient r (7)
    • 13.2: Testing the Significance of the Correlation Coefficient (10)
    • 13.3: Linear Equations (13)
    • 13.4: The Regression Equation (13)
    • 13.5: Interpretation of Regression Coefficients: Elasticity and Logarithmic Transformation (1)
    • 13.6: Predicting with a Regression Equation (19)
    • 13.7: How to Use Microsoft Excel® for Regression Analysis (2)


Cengage is proud to support the open source teaching community. Introductory Business Statistics, authored by Alexander Holmes, Barbara Illowsky, and Susan Dean, is available through OpenStax and is now supported by homework questions and student learning resources within WebAssign.

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  • PowerPoint slides based on the extensive illustrations from the textbook.
  • Over 900 end-of-section problems direct from the text suitable for homework, review, and tests.
  • Practice Another Version which let students try another version of the question if they get stuck or need some extra practice.
  • Socratic feedback for most questions provides a student-centric approach to learning, challenging students to develop their critical thinking skills, and guiding them to the correct answer.

Questions Available within WebAssign

Most questions from this textbook are available in WebAssign. The online questions are identical to the textbook questions except for minor wording changes necessary for Web use. Whenever possible, variables, numbers, or words have been randomized so that each student receives a unique version of the question. This list is updated nightly.

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GRAY questions are under development


Group Quantity Questions
Chapter 1: Sampling and Data
1.1 13 001.HW 002.HW 003.HW 004.HW 005.HW 006.HW 007.HW 008.HW 009.HW 010.HW 011.HW 501.XP 502.XP
1.2 43 012.HW 013.HW 014.HW 015.HW 016.HW 017.HW 018.HW 019.HW 020.HW 021.HW 022.HW 023.HW 024.HW 025.HW 026.HW 027.HW 028.HW 029.HW 030.HW 031.HW 032.HW 033.HW 034.HW 035.HW 036.HW 037.HW 501.XP 502.XP 503.XP 504.XP 505.XP 506.XP 507.XP 508.XP 509.XP 510.XP 511.XP 512.XP 513.XP 514.XP 515.XP 516.XP 517.XP
1.3 9 039.HW 040.HW 041.HW 042.HW 043.HW 044.HW 044.HW.alt 045.HW 045.HW.alt
1.4 4 501.XP 502.XP 503.XP 504.XP
Chapter 2: Descriptive Statistics
2.1 18 002.PR 003.PR 004.PR 006.PR 008.PR 010.PR 012.PR 014.PR 015.PR 016.PR 018.PR 084.HW 085.HW 086.HW 087.HW 088.HW 089.HW 090.HW
2.2 11 020.PR 021.PR 022.PR 024.PR 026.PR 028.PR 030.PR 032.PR 034.PR 091.HW 092.HW
2.3 8 036.PR 038.PR 040.PR 042.PR 093.HW 094.HW 501.XP 502.XP
2.4 9 044.PR 046.PR 048.PR 050.PR 095.HW 096.HW 097.HW 098.HW 099.HW
2.5 6 052.PR 100.HW 101.HW 102.HW 103.HW 104.HW
2.6 13 060.PR 062.PR 064.PR 066.PR 068.PR 070.PR 072.PR 074.PR 075.PR 076.PR 078.PR 105.HW 501.XP
2.7 41 079.PR 080.PR 082.PR 106.HW 107.HW 108.HW 109.HW 110.HW 111.HW 112.HW 113.HW 114.HW 115.HW 116.HW 117.HW 118.HW 119.HW 120.HW 121.HW 122.HW 123.HW 124.HW 125.HW 126.HW 127.HW 128.HW 129.HW 130.HW 131.HW 132.HW 501.XP 502.XP 503.XP 504.XP 505.XP 506.XP 507.XP 508.XP 509.XP 510.XP 511.XP
Chapter 3: Probability Topics
3.C 16 059.PR 061.PR 062.PR 063.PR 064.PR 065.PR 123.HW 124.HW 125.HW 126.HW 501.XP 502.XP 503.XP 504.XP 505.XP 506.XP
3.1 21 002.PR 004.PR 006.PR 008.PR 010.PR 012.PR 014.PR 016.PR 018.PR 020.PR 022.PR 024.PR 026.PR 028.PR 030.PR 032.PR 034.PR 036.PR 038.PR 072.HW 073.HW
3.2 16 040.PR 041.PR 042.PR 043.PR 074.HW 075.HW 076.HW 077.HW 078.HW 079.HW 080.HW 081.HW 082.HW 083.HW 084.HW 085.HW
3.3 26 044.PR 046.PR 048.PR 050.PR 052.PR 086.HW 087.HW 088.HW 089.HW 090.HW 091.HW 092.HW 093.HW 094.HW 095.HW 096.HW 097.HW 098.HW 099.HW 100.HW 101.HW 102.HW 103.HW 104.HW 105.HW 106.HW
3.5 21 054.PR 055.PR 056.PR 058.PR 107.HW 107.HW.alt 108.HW 109.HW 110.HW 111.HW 112.HW 113.HW 114.HW 115.HW 116.HW 117.HW 118.HW 119.HW 120.HW 121.HW 122.HW
Chapter 4: Discrete Random Variables
4.0 9 002.PR 004.PR 006.PR 008.PR 010.PR 012.PR 014.PR 016.PR 501.XP
4.1 6 018.PR 047.HW 048.HW 049.HW 050.HW 051.HW
4.2 29 021.PR 023.PR 025.PR 027.PR 052.HW 053.HW 054.HW 055.HW 056.HW 057.HW 058.HW 059.HW 059.HW.alt 060.HW 060.HW.alt 061.HW 061.HW.alt 062.HW 063.HW 064.HW 065.HW 066.HW 067.HW 068.HW 069.HW 070.HW 071.HW 072.HW 073.HW
4.3 11 029.PR 031.PR 033.PR 074.HW 075.HW 076.HW 077.HW 078.HW 079.HW 080.HW 081.HW
4.4 22 034.PR 036.PR 037.PR 038.PR 039.PR 040.PR 042.PR 044.PR 046.PR 082.HW 083.HW 084.HW 085.HW 086.HW 087.HW 088.HW 089.HW 090.HW 091.HW 092.HW 093.HW 094.HW
Chapter 5: Continuous Random Variables
5.1 11 002.PR 004.PR 006.PR 008.PR 009.PR 010.PR 012.PR 014.PR 015.PR 070.HW 071.HW
5.2 30 016.PR 018.PR 020.PR 022.PR 025.PR 027.PR 029.PR 031.PR 032.PR 034.PR 036.PR 038.PR 040.PR 072.HW 073.HW 074.HW 075.HW 076.HW 077.HW 078.HW 079.HW 080.HW 081.HW 082.HW 501.XP 502.XP 503.XP 504.XP 505.XP 506.XP
5.3 34 044.PR 046.PR 047.PR 048.PR 050.PR 051.PR 052.PR 053.PR 054.PR 056.PR 058.PR 059.PR 060.PR 062.PR 064.PR 066.PR 068.PR 069.PR 083.HW 084.HW 085.HW 086.HW 087.HW 088.HW 089.HW 090.HW 091.HW 092.HW 093.HW 094.HW 095.HW 096.HW 501.XP 502.XP
Chapter 6: The Normal Distribution
6.1 35 002.PR 003.PR 004.PR 006.PR 007.PR 008.PR 010.PR 012.PR 013.PR 014.PR 016.PR 017.PR 018.PR 020.PR 022.PR 024.PR 025.PR 026.PR 028.PR 030.PR 032.PR 034.PR 036.PR 038.PR 040.PR 042.PR 065.HW 066.HW 067.HW 068.HW 069.HW 070.HW 071.HW 072.HW 501.XP
6.2 4 501.XP 502.XP 502.XP.alt 503.XP
6.3 34 044.PR 045.PR 046.PR 048.PR 050.PR 052.PR 054.PR 058.PR 062.PR 073.HW 074.HW 075.HW 076.HW 077.HW 078.HW 079.HW 080.HW 081.HW 081.HW.alt 082.HW 083.HW 084.HW 085.HW 086.HW 087.HW 088.HW 089.HW 090.HW 093.HW 094.HW 095.HW 096.HW 501.XP 502.XP
Chapter 7: The Central Limit Theorem
7.1 12 049.HW 050.HW 051.HW 052.HW 053.HW 054.HW 055.HW 056.HW 057.HW 058.HW 059.HW 501.XP
7.2 64 002.PR 003.PR 004.PR 005.PR 006.PR 008.PR 009.PR 010.PR 011.PR 012.PR 014.PR 016.PR 018.PR 020.PR 021.PR 022.PR 024.PR 026.PR 028.PR 030.PR 032.PR 060.HW 061.HW 062.HW 063.HW 064.HW 501.XP 502.XP 503.XP 504.XP 505.XP 506.XP 507.XP 508.XP 509.XP 510.XP 511.XP 512.XP 513.XP 514.XP 515.XP 516.XP 517.XP 518.XP 519.XP 520.XP 521.XP 522.XP 523.XP 524.XP 525.XP 526.XP 527.XP 528.XP 529.XP 530.XP 531.XP 532.XP 533.XP 534.XP 535.XP 536.XP 537.XP 538.XP
7.3 9 034.PR 036.PR 038.PR 040.PR 065.HW 066.HW 067.HW 068.HW 069.HW
7.4 6 044.PR 070.HW 071.HW 072.HW 073.HW 074.HW
Chapter 8: Confidence Intervals
8.2 32 001.PR 003.PR 004.PR 005.PR 007.PR 008.PR 009.PR 010.PR 011.PR 012.PR 013.PR 014.PR 015.PR 016.PR 017.PR 019.PR 020.PR 021.PR 022.PR 023.PR 102.HW 103.HW 104.HW 105.HW 106.HW 107.HW 108.HW 109.HW 110.HW 111.HW 112.HW 113.HW
8.3 40 025.PR 027.PR 031.PR 033.PR 035.PR 037.PR 039.PR 040.PR 041.PR 043.PR 045.PR 047.PR 049.PR 050.PR 051.PR 053.PR 055.PR 057.PR 114.HW 115.HW 116.HW 117.HW 118.HW 118.HW.alt 119.HW 120.HW 121.HW 122.HW 122.HW.alt 123.HW 123.HW.alt 124.HW 125.HW 126.HW 127.HW 128.HW 129.HW 501.XP 501.XP.alt 502.XP
8.4 34 059.PR 060.PR 061.PR 063.PR 065.PR 067.PR 069.PR 070.PR 071.PR 073.PR 075.PR 077.PR 079.PR 081.PR 083.PR 085.PR 087.PR 089.PR 091.PR 093.PR 130.HW 131.HW 132.HW 133.HW 134.HW 135.HW 136.HW 137.HW 138.HW 139.HW 140.HW 141.HW 142.HW 143.HW
Chapter 9: Hypothesis Testing with One Sample
9.1 9 002.PR 004.PR 006.PR 008.PR 010.PR 045.HW 046.HW 047.HW 048.HW
9.2 12 012.PR 014.PR 016.PR 018.PR 020.PR 049.HW 050.HW 051.HW 052.HW 053.HW 054.HW 501.XP
9.3 13 022.PR 024.PR 026.PR 028.PR 030.PR 055.HW 501.XP 502.XP 503.XP 504.XP 505.XP 506.XP 507.XP
9.4 40 032.PR 033.PR 035.PR 037.PR 039.PR 041.PR 043.PR 056.HW 057.HW 058.HW 059.HW 060.HW 061.HW 062.HW 063.HW 064.HW 065.HW 066.HW 067.HW 068.HW 069.HW 070.HW 071.HW 072.HW 073.HW 074.HW 075.HW 076.HW 077.HW 078.HW 079.HW 080.HW 081.HW 082.HW 083.HW 084.HW 085.HW 501.XP 502.XP 503.XP
Chapter 10: Hypothesis Testing with Two Samples
10.C 21 106.HW 107.HW 108.HW 109.HW 110.HW 111.HW 112.HW 113.HW 114.HW 115.HW 116.HW 117.HW 501.XP 502.XP 502.XP.alt 503.XP 503.XP.alt 504.XP 504.XP.alt 505.XP 505.XP.alt
10.1 28 002.PR 004.PR 006.PR 008.PR 010.PR 012.PR 014.PR 016.PR 018.PR 020.PR 022.PR 024.PR 026.PR 029.PR 064.HW 065.HW 066.HW 067.HW 068.HW 069.HW 070.HW 071.HW 072.HW 073.HW 074.HW 075.HW 077.HW 078.HW
10.4 25 030.PR 032.PR 033.PR 035.PR 037.PR 039.PR 041.PR 043.PR 079.HW 081.HW 082.HW 083.HW 084.HW 085.HW 086.HW 087.HW 088.HW 089.HW 090.HW 091.HW 092.HW 501.XP 502.XP 503.XP 504.XP
10.5 14 045.PR 046.PR 048.PR 050.PR 052.PR 093.HW 094.HW 095.HW 096.HW 097.HW 098.HW 501.XP 502.XP 503.XP
10.6 18 055.PR 057.PR 058.PR 059.PR 061.PR 062.PR 099.HW 100.HW 101.HW 102.HW 103.HW 104.HW 105.HW 501.XP 502.XP 502.XP.alt 503.XP 504.XP
Chapter 11: The Chi-Square Distribution
11.1 6 001.PR 002.PR 004.PR 063.HW 064.HW 065.HW
11.2 25 007.PR 009.PR 011.PR 013.PR 014.PR 066.HW 067.HW 068.HW 069.HW 070.HW 071.HW 072.HW 073.HW 074.HW 075.HW 076.HW 077.HW 078.HW 079.HW 080.HW 081.HW 082.HW 083.HW 084.HW 085.HW
11.3 21 015.PR 017.PR 019.PR 020.PR 021.PR 024.PR 026.PR 027.PR 029.PR 086.HW 087.HW 088.HW 089.HW 090.HW 093.HW 094.HW 095.HW 096.HW 097.HW 098.HW 501.XP
11.4 24 031.PR 033.PR 035.PR 037.PR 038.PR 040.PR 042.PR 045.PR 047.PR 099.HW 100.HW 101.HW 102.HW 103.HW 104.HW 105.HW 106.HW 107.HW 108.HW 109.HW 110.HW 111.HW 112.HW 113.HW
11.5 11 049.PR 051.PR 053.PR 055.PR 056.PR 114.HW 115.HW 116.HW 117.HW 118.HW 119.HW
11.6 6 057.PR 060.PR 061.PR 120.HW 121.HW 122.HW
Chapter 12: F Distribution and One-Way ANOVA
12.1 26 001.PR 004.PR 006.PR 007.PR 010.PR 011.PR 055.HW 056.HW 057.HW 058.HW 059.HW 060.HW 061.HW 062.HW 063.HW 501.XP 502.XP 502.XP.alt 503.XP 503.XP.alt 504.XP 504.XP.alt 505.XP 506.XP 507.XP 508.XP
12.2 6 017.PR 018.PR 064.HW 065.HW 501.XP 502.XP
12.3 13 021.PR 022.PR 024.PR 025.PR 026.PR 027.PR 028.PR 030.PR 032.PR 034.PR 066.HW 067.HW 068.HW
12.4 28 036.PR 038.PR 040.PR 041.PR 042.PR 043.PR 044.PR 046.PR 047.PR 048.PR 049.PR 050.PR 052.PR 053.PR 054.PR 069.HW 070.HW 071.HW 072.HW 073.HW 074.HW 075.HW 076.HW 077.HW 078.HW 079.HW 501.XP 501.XP.alt
Chapter 13: Linear Regression and Correlation
13.1 7 002.PR 003.PR 004.PR 006.PR 007.PR 008.PR 010.PR
13.2 10 011.PR 012.PR 501.XP 502.XP 503.XP 504.XP 505.XP 505.XP.alt 506.XP 507.XP
13.3 13 014.PR 015.PR 016.PR 501.XP 502.XP 503.XP 504.XP 505.XP 506.XP 507.XP 508.XP 509.XP 510.XP
13.4 13 018.PR 019.PR 020.PR 501.XP 502.XP 503.XP 504.XP 505.XP 506.XP 506.XP.alt 507.XP 508.XP 509.XP
13.5 1 022.PR
13.6 19 024.PR 026.PR 501.XP 501.XP.alt 502.XP 503.XP 504.XP 505.XP 506.XP 506.XP.alt 507.XP 508.XP 509.XP 510.XP 511.XP 512.XP 513.XP 514.XP 515.XP
13.7 2 028.PR 029.PR
Total 1108